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// SPDX-License-Identifier: GPL-2.0
/* Converted from tools/testing/selftests/bpf/verifier/const_or.c */
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include "bpf_misc.h"
SEC("tracepoint")
__description("constant register |= constant should keep constant type")
__success
__naked void constant_should_keep_constant_type(void)
{
asm volatile (" \
r1 = r10; \
r1 += -48; \
r2 = 34; \
r2 |= 13; \
r3 = 0; \
call %[bpf_probe_read_kernel]; \
exit; \
" :
: __imm(bpf_probe_read_kernel)
: __clobber_all);
}
SEC("tracepoint")
__description("constant register |= constant should not bypass stack boundary checks")
__failure __msg("invalid write to stack R1 off=-48 size=58")
__naked void not_bypass_stack_boundary_checks_1(void)
{
asm volatile (" \
r1 = r10; \
r1 += -48; \
r2 = 34; \
r2 |= 24; \
r3 = 0; \
call %[bpf_probe_read_kernel]; \
exit; \
" :
: __imm(bpf_probe_read_kernel)
: __clobber_all);
}
SEC("tracepoint")
__description("constant register |= constant register should keep constant type")
__success
__naked void register_should_keep_constant_type(void)
{
asm volatile (" \
r1 = r10; \
r1 += -48; \
r2 = 34; \
r4 = 13; \
r2 |= r4; \
r3 = 0; \
call %[bpf_probe_read_kernel]; \
exit; \
" :
: __imm(bpf_probe_read_kernel)
: __clobber_all);
}
SEC("tracepoint")
__description("constant register |= constant register should not bypass stack boundary checks")
__failure __msg("invalid write to stack R1 off=-48 size=58")
__naked void not_bypass_stack_boundary_checks_2(void)
{
asm volatile (" \
r1 = r10; \
r1 += -48; \
r2 = 34; \
r4 = 24; \
r2 |= r4; \
r3 = 0; \
call %[bpf_probe_read_kernel]; \
exit; \
" :
: __imm(bpf_probe_read_kernel)
: __clobber_all);
}
char _license[] SEC("license") = "GPL";
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